Ciare CZ131

• Sensitivity (1W, 1m, infinite baffle) SPL1W 89.9dB

Thiele & Small parameters

• Resonance frequency (free air) fS 119Hz
• Mechanical quality factor QMS 6.05
• Electrical quality factor QES 1.85
• Total quality factor QTS 1.41

Large signal parameters

• Maximum linear excursion xmax 1.1mm
• Air volume displaced at xmax VD 9.7cm³
• Power handling P 50W
• Program power Pmax 100W

Voice Coil

• Nominal impedance Z 4Ω
• DC resistance RE 3.5Ω
• Inductance (1kHz, estimated) LE 0.25mH
• VC Diameter 25mm
• Former material Aluminium

Magnet

• Force factor Bl 2.68N/A
• Motor constant Bl/√RE 1.43N/√W
• Air gap height HAG 4mm
• Material Ferrite

Diaphragm

• Effective diameter 106mm
• Effective area SD 88.1cm²
• Moving mass MMS 5.7g
• Moving mass (without air load) MMD 5.1g

Suspensions

• Stiffness KMS 2.86N/mm
• Compliance CMS 350µm/N
• Equivalent volume to the compliance VAS 3.85L
• Mechanical resistance RMS 0.7N·s/m
• Surround material Rubber

Dimensions

• Nominal diameter 5″
• 130mm
• Overall diameter 130mm
• Baffle cutout diameter 112mm
• Overall depth 47mm
• Flange thickness 8mm
• Mounting depth 39mm
• Volume occupied by the driver (estimated) 0.17L
• Frame material Steel